In the U.S. Spirit Airlines ranks dead last in customer satisfaction. I think much of that is that they charge a fee for literally everything! And their seats are pushed together with almost no leg room.And they have been around now for a long while. The consumer by now should know, if you book a flight on Spirit, it's not the same experience you would get on Jet Blue or Southwest(both of which ranked at the top), or flying first class on a legacy carrier!